TPF Implementation Examples

Implementation examples start with a simple TPF and increase in complexity and functionality as the examples progress.

The TPF implementation examples are in the samples directory.

The examples are available in a precompiled dynamic library called libv4apiex. The extension of this library name is platform-dependent. This library includes the functions defined in udf_main.cxx, which contains the library-level functions, such as extfn_use_new_api. Put libv4apiex in a directory the server can read.

• tpf_rg_1
  TPF sample tpf_rg_1.cxx is similar to the table UDF sample udf_rg_2.cxx. It produces rows of data based on an input parameter.
• tpf_rg_2
  TPF sample tpf_rg_2.cxx builds on the sample in tpf_rg_1.cxx and has similar behavior. It produces rows of data based on an input parameter.
• Pass-Through TPF in tpf_blob
  The TPF sample tpf_blob.cxx demonstrates advanced UDF LOB and CLOB handling. The example is available in the samples directory. This examination of tpf_blob illustrates concepts not already covered by the simpler examples in tpf_rg_1 and tpf_rg_2; only the relevant portions are discussed.